# XKmax vs Sullivan County Library

XKmax and Sullivan County Library are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | XKmax | Sullivan County Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/xkmax/id6452970921/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 90 MB | 49 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [XKGLOW LLC](https://appshunter.io/developer/1022211243) | [Sullivan County Library](https://appshunter.io/developer/1738474619) |

## What reviewers say

### XKmax

[App page](https://appshunter.io/ios/app/xkmax/id6452970921)

Transform your vehicle with advanced addressable RGBW LED lighting. Customize colors, create chasing effects, and sync lights to music or vehicle speed. Control your lighting with programmable sensors and a remote fob.

**Highlights:** Addressable LED chasing effects, RGBW and RGB color channels, Music and vehicle speed sync, Programmable sensor control, RF remote fob operation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Sullivan County Library

[App page](https://appshunter.io/ios/app/sullivan-county-library/id6480207681)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is XKmax free?

XKmax is free to download, with no in-app purchases.

### Is Sullivan County Library free?

Sullivan County Library is free to download, with no in-app purchases.

### Do XKmax or Sullivan County Library have ads?

Neither XKmax nor Sullivan County Library shows ads.

### Which is updated more often, XKmax or Sullivan County Library?

XKmax ships an update every 3 weeks, and Sullivan County Library every 3 weeks. Most recently, XKmax was updated on October 10, 2026 and Sullivan County Library on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*